1968937 has 4 divisors (see below), whose sum is σ = 1981636. Its totient is φ = 1956240.

The previous prime is 1968919. The next prime is 1968977. The reversal of 1968937 is 7398691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7398691 = 173 ⋅42767.

It can be written as a sum of positive squares in 2 ways, for example, as 1175056 + 793881 = 1084^2 + 891^2 .

It is a cyclic number.

It is not a de Polignac number, because 1968937 - 2¹¹ = 1966889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1968893 and 1968902.

It is not an unprimeable number, because it can be changed into a prime (1968977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6114 + ... + 6427.

It is an arithmetic number, because the mean of its divisors is an integer number (495409).

2^1968937 is an apocalyptic number.

It is an amenable number.

1968937 is a deficient number, since it is larger than the sum of its proper divisors (12699).

1968937 is a wasteful number, since it uses less digits than its factorization.

1968937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12698.

The product of its digits is 81648, while the sum is 43.

The square root of 1968937 is about 1403.1881555943. The cubic root of 1968937 is about 125.3364164462.

The spelling of 1968937 in words is "one million, nine hundred sixty-eight thousand, nine hundred thirty-seven".